Introduction
In the 1850s over 400,000 tonnes of waste and sewage was being discharged into the River Thames each day. By 1858 the stench from the raw sewage around and within the Thames was named the ‘Great Stink’. It was a Civil Engineer named Joseph Bazalgette who proposed a plan of the creation of an underground network of tunnels, to put an end to the polluted river. His engineering feat has been improved and extended vastly but the Victorian Sewers still stand as London’s primary sewer system. The sewers were designed to be a combined system meaning rainwater and waste were transported in the same manner. Bazalgette designed Combined Sewage Overflow (CSO) points along the Thames. The CSO’s discharged the sewage and rainwater into the Thames after substantial rainfall, this prevented flooding the streets and houses. When designing the sewers, population increase was taken into consideration. (16) The underground system and factories were designed to treat and transfer sewage of up to double the population that was present when construction began. However the population of London almost quadrupled from 2.35 Million in 1850 (19) to 8.17 million in 2011(7). This drastic increase meant that the sewers were overloaded. The CSO’s were overflowing with only 2mm of rainfall and on average discharging into the Thames around twice a week. The head of Thames Water Phil stride, said “Currently, 32 million cubic metres of storm sewage overflows from London 's Victorian sewers into
The article Victoria’s ugly stain is about the sewage treatment in Victoria. Over the past few years, Victoria population has placed over 34 billion litres of sewage into lakes and oceans. At this moment, it’s not effecting environment, but it can hazardous to environment in future years. It can also become dangerous for living beings such as aquatic life and animals in forests. For example, writer talks about the metals found in the human waste such as copper, mercury and lead are contaminating ocean water. Also toxic byproducts from motor oil and vehicle
Moose Jaw, Saskatchewan is a town best known as a retirement and tourist town. In present day, Moose Jaw is a quiet town in a flat and quiet province. However in the roaring twenties, life in this town got a lot more hectic as illegal alcohol and gangsters started creeping their way into the tunnels and roaming the underground of Moose Jaw.
After reading Tunnels by Mariana Carreno King, I viewed the play in different colors. I envisioned the outside world colorful and everything underneath in the tunnels to be dark, monotone, and mute. Hence, since Ester has just left the outside world, her first outfit is colorful (pink top and blue jeans), while both Dee and Victoria, who live in the tunnels, wear grey and black. Ester is given a new change of clothes of which is a boring beige color. By showing a drastic change from a normal colorful outfit with tennis shoes (outfit is torn and dirty from traveling from the outside world into the tunnels), to a uniform monotone costume, I wanted to portray the feeling of dullness that comes from living in the tunnels. In addition, hair and
The sewer system would collect water from baths, latrines (a public pay toilet), palaces, fountain, and other urban runoff (Hasan). From here, the sewers would flow through town to either the nearest river or to out onto fields for irrigating and fertilizing soil (Wikander 176, 655). However not every Roman citizen could afford the cost of a bath or bathroom in their house, so they would be forced to either use a latrine or a chamber pot (Hasan). A latrine was a public pay toilet and a chamber pot was a pot where bodily excretions went (Hasan). The chamber pot became a problem as most people became too lazy to properly empty them, so they dumped the chamber pot out of the window. With this problem rising, the Romans decided to use an open sewer system as well with the regular sewer system (Wikander 168). The open sewer system is exactly how it sounds, it’s an open sewer where sewage runs through town to the nearest disposal sight. This helped with the disposal of the chamber buckets. Later an emperor named Vespasian came up with the idea to collect all the urine (Hasan). Vespasian had discovered that the ammonia in urine had cleaning properties, so he collected the urine to wash clothes
The Bridges and Tunnels of New York City 1. Why are bridges and tunnels important to have? 2. What is the difference between bridges and tunnels? 3. What is the similarity between bridges and tunnels?
The construction of the Thames Tideway Tunnel is an eight-year project starting in 2016 with the projected completion date in 2023. The tunnel is being constructed in order to address the issue of London’s overflowing sewer system. The current 20,000 miles of networked sewage pipes were built in the 1860’s by Joseph Bazalgette and they are failing to meet 21st century demands with London’s growing population and increasing levels of rainwater ending up in the sewers. The sewers were designed so that rare overflows would be flushed into the river, however, at the time of construction this only happened on average once a year and now it happens on a weekly basis resulting in 39 million tonnes of raw sewage ending up in the River Thames every year. (BBC News, 2014) (Super Sewer: An Introduction to the Thames Tideway Tunnel Project in London, 2016) According to Phil Stride from Thames Water, “It is absolutely not consistent for a world-leading city to be using its river as an open sewer”, and it is because of this that the Thames Tideway Tunnel became the proposed solution to London’s sewage problems.
Finally, “Tunneling to the Center of the Earth” depicts the story of three college graduates who discovers themselves. Feeling unaccomplished because of their degrees and stubbornly avoiding reality, they decide to dig tunnels and outlive their summer freely underground for several months. It was not until winter came and forced them back to reality that they found themselves in better circumstances than they assumed. After he rises above ground, the narrator realizes how, “hiding in tunnels had been a way to avoid the responsibilities of the real world…But it was more than that” (103). The narrator’s digging of tunnels assisted him in finding his purpose for Morse code and how it can be incorporated with his career in landscaping; his
Thames Water is one of the UK’s biggest tap water and sewerages services - they supply water to over 15 million of households and Businesses in the Greater London area and some parts of the South East of England.
The Twin Tunnels, proposed by the Governor of California jerry Brown, are two tunnels that would run from the delta to Southern California. The project would make two tunnels, each about 20-40 feet in wide and around 35 miles long, that would be 150 feet beneath the Delta. The Twin Tunnels will be extremely expensive especially to taxpayers and very destructive to the Delta's ecosystems. Much of California opposes them.
Using the 2015 flow in MGD data, plot a line graph between weekly flows in million gallons per day. The peak capacity reached on 6/20/2015 exceeding design capacity of 19.1 million gallon per day as shown in the "Figure - The Wheaton Sanitary District historical weekly sewer flow 2015". When we compare the historical average, it is less than the dry weather capacity of 8.9 million gallon per day and much less than the design capacity of 19.1 million gallon per day.
While the wet-land treatment system is very effective in treating large quantities of sewage it still falls short of the large problem. It still is not treating the problem at its source. There are other options and systems that are in place to deal with urban pollution issues and flooding. Some example of systems that have the potential to mitigate urban at their source are implementing low impact development, installation of sand filters, infiltration trenches permeable pavers, storm water planters and green roofs.
This was very evident in the report by Henry B Ward where he had highlighted that the conditions of the Hudson River in New York had deteriorated so poorly throughout his life that the banks of the river resembled an open sewer or the stretches of a septic tank [3]. Mr. Ward also stated that the conditions along the Hudson River did not require any chemical testing to confirm the volume of pollution that it was blatantly obvious by the form debris on the bottom as well as with materials floating in the water. Unfortunately this was not a remote situation but was discovered in multiple locations along the Hudson River [4]. These cases initially started out in small isolated areas but due to the increase in population as well as expanding industrial complexes nearly waterways the location and magnitude of pollution grew rapidly.
Ellis J., Revitt, D., Vollertsen, J., Blackwood, D., 2008. Factors influencing temporal exfiltration rates in sewer systems. Proceedings of International Conference of Urban Drainage, August 2008. Edinburgh, Scotland. London.UK. ISBN 978 1899796 212
Experts have generated many experiments in order to help the world establish a better living environment. In the online article, Reducing sewer corrosion through integrated urban water management, it talks about how there is one way cities try to pick up wastewaters that is through the sewer system, take all the dirty waste. These pipes are set up all around the city to transport this water quickly and effectively throughout the city, this helps the city stay a bit cleaner and help physically by reducing health problems for the whole population. However, having all these pipes around the cities is very expensive, but it is worth the money since it is keeping our cities clean. Sulfide is a type of concrete that the sewer
Settled sewerage for example, is appropriate for middle-income or upper-income areas which already have septic tanks, but “where the soil can no longer accept all the septic tank effluent”; this system is being used in Australia, United States, Colombia and Nigeria. “Simplified sewerage system is most suitable for high-density, low-income areas”; this method is now used commonly in Brazil and in some countries of Latin America, Pakistan, and Karachi. (Mara, 1996, pp. 249-256) However, these data are too old now, and we cannot rely on already infirm experience.